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L3934AN PDF预览

L3934AN

更新时间: 2024-11-25 03:49:39
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS /
页数 文件大小 规格书
15页 189K
描述
SPEECH AND 14 MEMORY DIALER WITH HOLD FUNCTION

L3934AN 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP, DIP28,.6
针数:28Reach Compliance Code:not_compliant
HTS代码:8542.39.00.01风险等级:5.92
JESD-30 代码:R-PDIP-T28JESD-609代码:e0
长度:36.83 mm破损率:1:1.5
功能数量:1端子数量:28
最高工作温度:75 °C最低工作温度:-25 °C
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP28,.6封装形状:RECTANGULAR
封装形式:IN-LINE电源:3 V
认证状态:Not Qualified子类别:Other Telecom ICs
标称供电电压:3 V表面贴装:NO
技术:BIPOLAR电信集成电路类型:TELEPHONE MULTIFUNCTION CIRCUIT
温度等级:COMMERCIAL EXTENDED端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL宽度:15.24 mm
Base Number Matches:1

L3934AN 数据手册

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L3914A  
L3924A - L3934A  
SPEECH AND 14 MEMORY DIALER WITH HOLD FUNCTION  
ADVANCE DATA  
SPEECH CIRCUIT  
2 TO 4 WIRES CONVERSION  
PRESENT THE PROPER DC PATH FOR THE  
LINE CURRENT AND THE FLEXIBILITY TO  
ADJUST IT AND ALLOW PARALLEL PHONE  
OPERATION  
PROVIDES SUPPLY WITH LIMITED CUR-  
RENT FOR EXTERNAL CIRCUITRY  
SYMMETRICAL HIGH IMPEDANCE MICRO-  
PHONE INPUTS SUITABLE FOR DYNAMIC  
DIP28  
SO28  
ORDERING NUMBERS:  
L3914AN  
L3924AN  
L3934AN  
L3914AD  
L3924AD  
L3934AD  
ELECTRET  
OR  
PIEZOELECTRIC  
TRANSDUCER  
ASYMMETRICAL  
SUITABLE FOR DYNAMIC TRANSDUCER  
LINE LOSS COMPENSATION  
EARPHONE OUTPUT  
PIN CONNECTION (Topview)  
INTERNAL MUTING TO DISABLE SPEECH  
DURING DIALING  
HOLD FUNCTION FOR PARALLEL PHONE  
WITH 400ms DELAY TO PREVENT FALSE  
RELEASE  
DIALER CIRCUIT  
32 DIGITS FOR LAST NUMBER REDIAL  
BUFFER  
18 DIGITS FOR 13 MEMORY REDIAL  
ALLOW MIXED MODE DIALING IN EITHER  
TONE OR PULSE MODE  
PACIFIER TONE PROVIDES AUDIBLE INDI-  
CATION OF VALID KEY PRESSED IN A  
BUZZER OR/AND IN THE EARPHONE  
TIMED PABX PAUSE  
KEYPAD CONFIGURATION  
FLASH INITIATES TIMED BREAK:  
MASK OPTIONS WITH 585ms,300ms,100ms  
CONTINUOUS TONE FOR EACH DIGIT UN-  
TIL KEY RELEASE  
USES INEXPENSIVE 3.579545MHz CE-  
RAMIC RESONATOR  
POWERED FROM TELEPHONE LINE, LOW  
OPERATING VOLTAGE FOR LONG LOOP  
APPLICATION  
DESCRIPTION  
The device consists of the speech and the dialer.  
It provides the DC line interface circuit that termi-  
nates the telephone line, analog amplifier for  
speech transmission and necessary signals for  
either DTMF or loop disconnect (pulse) dialing.  
Note: PAUSE/LND:  
PAUSE and LND functions are sharing the same key with different  
sequence. Hereafter, PAUSEand LND keys arereferring tothesame  
key.  
January 1995  
1/15  
This isadvanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.  

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